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Author SHA1 Message Date
Glenn Randers-Pehrson
b7e32059d3 [libpng16] Bump version to 1.6.0beta15 2012-02-26 21:38:19 -06:00
Glenn Randers-Pehrson
faf38eea03 [libpng16] Imported from libpng-1.6.0beta14.tar v1.6.0beta14 2012-02-26 21:38:09 -06:00
Glenn Randers-Pehrson
9eb125e927 [libpng16] Updated Makefile.in 
Added information about the new limits in the manual.
 2012-02-24 22:04:53 -06:00
Glenn Randers-Pehrson
203e6dd7cf [libpng16] Checked in new Makefile.am that maintains pngusr.dfa 2012-02-24 15:56:01 -06:00
Glenn Randers-Pehrson
16bb03b8b4 [libpng16] Bump version to 1.6.0beta14 2012-02-24 11:52:56 -06:00
Glenn Randers-Pehrson
df44c4c4d9 [libpng16] Imported from libpng-1.6.0beta13.tar v1.6.0beta13 2012-02-24 11:45:34 -06:00
Glenn Randers-Pehrson
4690b89eaa [libpng16] Added PNG_SAFE_LIMITS feature to pnglibconf.dfa, pngpriv.h, and new pngusr.dfa 
to reset the user limits to safe ones if PNG_SAFE_LIMITS is defined.
To enable, use CPPFLAGS=-DPNG_SAFE_LIMITS on the configure command
or put #define PNG_SAFE_LIMITS_SUPPORTED in pnglibconf.h.prebuilt.
(Reverted previous implementation of PNG_SECURE.)
 2012-02-24 11:43:31 -06:00
Glenn Randers-Pehrson
10c0693210 [libpng16] Added PNG_SECURE feature to pnglibconf.dfa and new pngusr.dfa file 
to reset the user limits to safe ones if PNG_SECURE is defined.
 2012-02-23 18:41:13 -06:00
Glenn Randers-Pehrson
17ba5de88f [libpng16] Eliminated redundant png_push_read_tEXt|zTXt|iTXt|unknown code from 
pngpread.c and use the sequential png_handle_tEXt, etc., in pngrutil.c;
    now that png_ptr->buffer is inaccessible to applications, the special
    handling is no longer useful.
 2012-02-21 14:49:56 -06:00
Glenn Randers-Pehrson
7d5bf79d88 [libpng16] Bump version to 1.6.0beta13 2012-02-18 22:54:56 -06:00
Glenn Randers-Pehrson
a4badc4b50 [libpng16] Imported from libpng-1.6.0beta12.tar v1.6.0beta12 2012-02-17 17:07:54 -06:00
Glenn Randers-Pehrson
b0606ea043 [libpng16] Increase num_palette to invalid_index + 1, not to invalid_index. 2012-02-16 20:48:28 -06:00
Glenn Randers-Pehrson
566fb611b6 [libpng16] Bump version to 1.6.0beta12 2012-02-16 20:24:39 -06:00
Glenn Randers-Pehrson
c737b7cf70 [libpng16] Imported from libpng-1.6.0beta11.tar v1.6.0beta11 2012-02-16 20:16:09 -06:00
Glenn Randers-Pehrson
67dba43998 [libpng16] Check for invalid palette index while reading paletted PNG. When 
one is found, issue a warning and increase png_ptr->num_palette accordingly.
Apps are responsible for checking to see if that happened.
 2012-02-16 20:15:13 -06:00
John Bowler
bce7988230 [libpng16] Fixed fixed/float API export conditionals. 1) If FIXED_POINT or 
FLOATING_POINT options were switched off, png.h ended up with lone ';'
    characters.  This is not valid ANSI-C outside a function.  The ';'
    characters have been moved inside the definition of PNG_FP_EXPORT and
    PNG_FIXED_EXPORT. 2) If either option was switched off, the declaration
    of the corresponding functions were completely omitted, even though some
    of them are still used internally.  The result is still valid, but
    produces warnings from gcc with some warning options (including -Wall). The
    fix is to cause png.h to declare the functions with PNG_INTERNAL_FUNCTION
    when png.h is included from pngpriv.h.
 2012-02-13 11:45:22 -06:00
Glenn Randers-Pehrson
864270e18f [libpng16] Fixed a memory overwrite bug in simplified read of RGB PNG with 
Fixed a memory overwrite bug in simplified read of RGB PNG with
non-linear gamma Also bugs in the error checking in pngread.c and changed
quite a lot of the checks in pngstest.c to be correct; either correctly
written or not over-optimistic.  The pngstest changes are insufficient to
allow all possible RGB transforms to be passed; pngstest cmppixel needs
to be rewritten to make it clearer which errors it allows and then changed
to permit known inaccuracies.
 2012-02-10 17:13:13 -06:00
Glenn Randers-Pehrson
74df4f1956 [libpng16] Removed some unused arrays from png_read_push_finish_row(). 2012-02-10 15:19:34 -06:00
John Bowler
aa725a375c [libpng16] Corrected estimate of error in libpng png_set_rgb_to_gray API. 
The API is extremely inaccurate for sRGB conversions because it uses an 8-bit
intermediate linear value and it does not use the sRGB transform, so it
suffers from the known instability in gamma transforms for values close
to 0 (see Poynton).  The net result is that the calculation has a maximum
error of 14.99/255; 0.5/255^(1/2.2).  pngstest now uses 15 for the
permitted 8-bit error. This may still not be enough because of arithmetic
error.
 2012-02-04 15:11:16 -06:00
Glenn Randers-Pehrson
5578c3719e [libpng16] Updated documentation about the simplified API. 2012-02-04 10:31:38 -06:00
Glenn Randers-Pehrson
ce3c7330ba [libpng16] Revised test-pngstest.sh to report PASS/FAIL for each image. 2012-02-04 07:35:34 -06:00
John Bowler
c8348f80d5 [libpng16] Fix character count in pngstest command in 
projects/owatcom/pngstest.tgt
 2012-02-03 21:40:07 -06:00
Glenn Randers-Pehrson
612d52afce [libpng16] Fixed some editing cruft in libpng-manual.txt and libpng.3 2012-02-03 21:14:33 -06:00
Glenn Randers-Pehrson
3449169622 [libpng16] Bump version to 1.6.0beta11 2012-02-03 02:01:02 -06:00
Glenn Randers-Pehrson
ead660ae1e [libpng16] Imported from libpng-1.6.0beta10.tar v1.6.0beta10 2012-02-03 01:56:26 -06:00
Glenn Randers-Pehrson
04afaab56a [libpng16] Bump version to 1.6.0beta10 2012-02-03 00:39:02 -06:00
Glenn Randers-Pehrson
781a90b358 [libpng16] Updated list of test images in CMakeLists.txt 2012-02-02 15:48:55 -06:00
John Bowler
61d7058b5b [libpng16] Added Z_SOLO for zlib-1.2.6+ and correct pngstest tests 2012-02-02 08:37:11 -06:00
Glenn Randers-Pehrson
db6850b389 [libpng16] Bump version to 1.6.0beta10 2012-02-01 15:41:43 -06:00
Glenn Randers-Pehrson
eda298bc01 [libpng] Note in CHANGES that Makefile.in and configure were reverted 
to libpng-1.6.0beta05 versions.
v1.6.0beta09 		2012-02-01 15:27:17 -06:00
John Bowler
516c9c97a6 [libpng16] Attempt to fix problem with autogen.sh 
Renamed internal configure variable from prefix_TRUE to DO_PNG_PREFIX_TRUE
 2012-02-01 07:14:24 -06:00
Glenn Randers-Pehrson
0d4d0b4d32 [libpng16] Bump version to libpng-1.6.0beta09.tar 2012-01-31 22:58:08 -06:00
Glenn Randers-Pehrson
5bffd6c6d5 [libpng16] Imported from libpng-1.6.0beta08.tar v1.6.0beta08 2012-01-31 22:46:45 -06:00
Glenn Randers-Pehrson
816ff328d2 [libpng16] Updated CHANGES and ANNOUNCE with new information about autogen.sh 2012-01-31 22:26:34 -06:00
Glenn Randers-Pehrson
34dca8f8e8 [libpng16] Updated INSTALL to explain that autogen.sh must be run in a GIT 
clone, not in a directory extracted from a tar distribution.
 2012-01-31 22:15:30 -06:00
John Bowler
3167541570 [libpng16] Fixed 'prefix' builds on clean systems. The generation of pngprefix.h 
should not require itself.
 2012-01-31 21:01:49 -06:00
John Bowler
6437604a5e [libpng16] Fix comment in scripts/pnglibconf.dfa 2012-01-31 20:58:02 -06:00
Glenn Randers-Pehrson
2dd49fbeae [libpng16] Updated "ftbb*.png" list in the owatcom and vstudio projects. 2012-01-31 08:27:32 -06:00
John Bowler
f1c0678c16 [libpng16] Fixed non-configure builds (don't include pngprefix.h in them) 2012-01-31 07:37:46 -06:00
John Bowler
42369ccd85 [libpng16] Added symbol prefixing that allows all the libpng external symbols 
to be prefixed (suggested by Reuben Hawkins).  This is work in progress that
breaks some non-configure builds.
 2012-01-31 07:28:13 -06:00
John Bowler
572b078d8c [libpng16] Cleaned up pngpriv.h to consistently declare all functions and data. 
Also eliminated PNG_CONST_DATA, which is apparently not needed but we
can't be sure until it is gone.
 2012-01-31 07:09:34 -06:00
John Bowler
40ca77a721 [libpng16] Improved pngstest speed by not doing redundant tests and add const 
to the background parameter of png_image_finish_read. The --background
option is now done automagically only when required, so that commandline
option no longer exists.
 2012-01-28 23:19:42 -06:00
John Bowler
05cbe5ae28 [libpng16] Moved automake options to AM_INIT_AUTOMAKE in configure.ac 
Added color-tests, silent-rules (Not yet implemented in Makefile.am) and
version checking to configure.ac
 2012-01-28 18:06:55 -06:00
Glenn Randers-Pehrson
5cdff4144e [libpng16] Divide pngstest into separate runs for basic and transparent images. 2012-01-28 01:07:34 -06:00
John Bowler
feecc898d9 [libpng16] Check libtool/libtoolize version number (2.4.2) in configure.ac 2012-01-28 00:48:08 -06:00
John Bowler
3a1d63dc69 [libpng16] Fixed Image::colormap misalignment in pngstest.c 2012-01-28 00:11:53 -06:00
Glenn Randers-Pehrson
573a51143a [libpng16] bump version to 1.6.0beta08 2012-01-27 22:37:58 -06:00
Glenn Randers-Pehrson
6690011811 [libpng16] Imported from libpng-1.6.0beta07.tar v1.6.0beta07 2012-01-27 22:29:22 -06:00
Glenn Randers-Pehrson
dde1f98626 [libpng16] Committed 5 new or renamed files in contrib/pngsuite. 2012-01-27 20:35:35 -06:00
Glenn Randers-Pehrson
aaf1179ec1 [libpng16] Added two images to contrib/pngsuite (1-bit and 2-bit transparent 
grayscale), and renamed three whose names were inconsistent with those in
pngsuite/README.txt.
 2012-01-27 20:07:00 -06:00